Electronics - Ask Aqua Navigation
I have not seen any Software that offers any great training for Radar (ARPA) operations. If you go to Http://www.Seamanshiptutor.com they have a decent online traing tool that is free and can give a beginner the basics. Otherwise I highly recommend attending a martime accademy like S.T.A.R. Center http://www.star-center.com/ for a real time training. They have a full integrated bridge that simulates radar and full display capabilites.
Brian W. CoffinSenior Radio Surveyor/ Managing DirectorAquatic Navigation, Incwww.AquaticNav.com